Antimicrobial agents Usage in Contact Lens Solution
6 basic classes of antimicrobial agents are: • Quaternary ammonium agents and biguanides • Oxidative agent • Chlorine based and chlorine gen...
Introduction to Orientation and Mobility
Introduction to Orientation and Mobility: People who have difficulty seeing are afraid to go outdoors by themselves. They sit at home becau...
Clinical Measurements of Accommodation
Far point of accommodation is the point conjugate with the retina when the accommodation is fully relaxed. (Punctum remotum) Near point of a...
Competition Questions - Contact Lens Part 2
Contact Lens - Questions Q36. Discomfort along the lower lid margin and reduced oxygen transmissibility are disadvantage of all of the foll...
Competition Questions - Contact Lens Part 1
Contact lens - Questions Q1. Which of the following modifications to rigid gas permeable (RGP) lenses can NOT be made in a typical contact l...
Cases of paralysis of the Extrinsic Ocular Muscles (EOM)
Cases of paralysis of the Extrinsic Ocular Muscles (EOM)
What if I use sanitizer to clean lens case & then dip in normal water?
What if I use sanitizer to clean lens case & then dip in normal water? Contact lenses are medical device which directly kept on cornea (...
How to identify Refractive Diagnosis of a Spectacle Prescription?
Identifying refractive diagnoses is very easy. Just you need to know the basic rules to identify a refractive diagnosis. There are a few sim...
Glasses or Spectacle Power Transposition - Easy way
It is very easy to transpose glasses or spectacle prescriptions. You need to follow some basic rules to transpose minus cylinder to plus cyl...